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Imagick::identifyImage

(PECL imagick 2, PECL imagick 3)

Imagick::identifyImageGörüntünün özniteliklerini döndürerek görüntüyü tanımlar

Açıklama

public Imagick::identifyImage(bool $hamÇıktıEkle = false): array

Görüntünün özniteliklerini döndürerek görüntüyü tanımlar. Öznitelikler, görüntünün genişliği, yüksekliği ve benzerlerinden oluşur.

Bağımsız Değişkenler

hamÇıktıEkle

true ise ham çıktı diziye eklenir.

Dönen Değerler

Görüntünün özniteliklerini içeren bir dizi.

Hatalar/İstisnalar

Hata durumunda bir ImagickException istisnası oluşur.

Örnek 1 - Dönen değer örneği

Array
(
    [imageName] => /some/path/image.jpg
    [format] => JPEG (Joint Photographic Experts Group JFIF format)
    [geometry] => Array
        (
            [width] => 90
            [height] => 90
        )

    [type] => TrueColor
    [colorSpace] => RGB
    [resolution] => Array
        (
            [x] => 300
            [y] => 300
        )

    [units] => PixelsPerInch
    [fileSize] => 1.88672kb
    [compression] => JPEG
    [signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)

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User Contributed Notes 3 notes

up
0
rhuanpachecok at gmail dot com
3 years ago
I have created a function to parse the "rawOutput" because the information provided by this function is quite useless.

function parseIdentify($info) {
$lines = explode("\n", $info);

$outputs = [];
$output = [];
$keys = [];

$currSpaces = 0;
$raw = false;

foreach($lines as $line) {
$trimLine = trim($line);

if(empty($trimLine)) continue;

if($raw) {
preg_match('/^[0-9]+:\s/', $trimLine, $match);

if(!empty($match)) {
$regex = '/([\d]+):';
$regex .= '\s(\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3}\))';
$regex .= '\s(#\w+)';
$regex .= '\s(srgba\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s|.]+\)|\w+)/';

preg_match($regex, $trimLine, $matches);
array_shift($matches);

$output['Image'][$raw][] = $matches;

continue;
}

else {
$raw = false;
array_pop($keys);
}
}

preg_match('/^\s+/', $line, $match);

$spaces = isset($match[0]) ? strlen($match[0]) : $spaces = 0;
$parts = preg_split('/:\s/', $trimLine, 2);

$_key = ucwords($parts[0]);
$_key = str_replace(' ', '', $_key);
$_val = isset($parts[1]) ? $parts[1] : [];

if($_key == 'Image') {
if(!empty($output)) {
$outputs[] = $output['Image'];
$output = [];
}

$_val = [];
}

if($spaces < $currSpaces) {
for($i = 0; $i < ($currSpaces - $spaces) / 2; $i++) {
array_pop($keys);
}
}

if(is_array($_val)) {
$_key = rtrim($_key, ':');
$keys[] = $_key;

if($_key == 'Histogram' || $_key == 'Colormap') {
$raw = $_key;
}
}

$currSpaces = $spaces;
$arr = &$output;

foreach($keys as $key) {
if(!isset($arr[$key])) {
$arr[$key] = $_val;
}

$arr = &$arr[$key];
}

if(!is_array($_val)) {
$arr[$_key] = $_val;
}

}

$outputs[] = $output['Image'];

return count($outputs) > 1 ? $outputs : $outputs[0];
}

Usage example:

$img = new Imagick('example.png');
$identify = parseIdentify($img->identifyImage(true)['rawOutput']);

But the "rawOutput" that this function returns only contains the first frame if it is a GIF. Alternatively you can use the command "identify" to get the data of all the frames:

$identify = parseIdentify(shell_exec('identify -verbose example.gif'));
up
0
php at ontheroad dot net dot nz
13 years ago
If you use the option to append the raw output, you can extract the mime type from there. I'm not sure what's going on in the background here, but it seems far less useful than the command line identify tool.
up
0
rob at OhReally dot nl
15 years ago
The array returned by Imagick::identifyImage():

Array
(
[imageName] => /some/path/image.jpg
[format] => JPEG (Joint Photographic Experts Group JFIF format)
[geometry] => Array
(
[width] => 90
[height] => 90
)

[type] => TrueColor
[colorSpace] => RGB
[resolution] => Array
(
[x] => 300
[y] => 300
)

[units] => PixelsPerInch
[fileSize] => 1.88672kb
[compression] => JPEG
[signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)

Looks like the only way to get the mimetype is getimagesize()...
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